dissociatioin energies

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vicenteruelos3
Posts: 42
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dissociatioin energies

Postby vicenteruelos3 » Thu Nov 09, 2017 1:41 am

why does CH have a higher dissociation energy than CN

Hammad Khan 2B
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Re: dissociatioin energies

Postby Hammad Khan 2B » Thu Nov 09, 2017 10:16 am

I would assume that with CH the atom of H achieves the two electrons it needs to have a full valence shell compared to CN where neither element gets their valence shell full. So because H gets its shell full it would have a stronger bond with C to prevent it's electron being taken compared to CN where there isn't a strong enough bond to keep the electrons since the shell isn't filled up.

vicenteruelos3
Posts: 42
Joined: Fri Sep 29, 2017 7:07 am

Re: dissociatioin energies

Postby vicenteruelos3 » Thu Nov 09, 2017 11:39 am

oh i think i meant to say NH

so why is dissociation energy of CH higher than that of NH

Diego Zavala 2I
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Re: dissociatioin energies

Postby Diego Zavala 2I » Thu Nov 09, 2017 4:01 pm

N has a half-full shell (p^3) so it has a lower electronegativity than C because adding another electron to N would increase e-e repulsion; therefore, CH has a higher disassociation energy than NH


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